package operation;

import book.Book;
import book.BookList;

import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: Administrator
 * Date: 2023-03-25
 * Time: 16:04
 */
public class Deleoperation implements Ioperation{
    @Override
    public void work(BookList bookList) {
        System.out.println("删除图书！");
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你要删除图书的名字：>");
        String name = scanner.nextLine();

        int currentSize = bookList.getUsedSize();
        int delindex = -1;
        int i = 0;
        for (; i < currentSize; i++) {
            Book book = bookList.getBook(i);
            if(book.getName().equals(name)){
                delindex = i;
                break;
            }
        }
        if(i == currentSize){
            System.out.println("没有找到你要删除的这本书!");
            return;
        }
        for (int j = delindex; j < currentSize - 1; j++) {
            Book book = bookList.getBook(j + 1);
            bookList.setBooks(j,book);

        }
        bookList.setBooks(currentSize - 1,null);
        bookList.setUsedSize(currentSize - 1);
        System.out.println("删除图书成功！");
    }
}
